/* ----------------------------------------------------------------
# This software is part of the FreeCodeCollection project
# http://code.google.com/p/freecodecollection/
#
# Copyright (c) 2011 Vurdalakov
# http://www.vurdalakov.net
# vurdalakov@gmail.com
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
---------------------------------------------------------------- */

#ifndef GZUNPACK_H
#define GZUNPACK_H

#include <stdio.h>

typedef struct
{
    unsigned char compressionMethod;
    unsigned char flags;
    unsigned long modificationTime;
    unsigned char extraFlags;
    unsigned char operatingSystem;
    unsigned short extraFieldLength;
    unsigned char *extraField;
    char *originalFileName;
    char *fileComment;
    unsigned short headerCrc;
} GzFileHeader;

GzFileHeader *gzUnpackHeader(FILE *packedFileHandle);

void gzFreeHeader(GzFileHeader *gzFileHeader);

int gzUnpackFile(FILE *packedFileHandle, FILE *unpackedFileHandle);

#endif
